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The From request header contains an Internet email address for a human user who controls the requesting user agent.

If you are running a robotic user agent (e.g. a crawler), the From header should be sent, so you can be contacted if problems occur on servers, such as if the robot is sending excessive, unwanted, or invalid requests.

You shouldn't use the From header for access control or authentication.

Header type Request header
Forbidden header name no

Syntax

From: <email>

Directives

<email>
A machine-usable email address.

Examples

From: webmaster@example.org

Specifications

Specification Title
RFC 7231, section 5.5.1: From Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Basic supportChrome Full support YesEdge Full support YesFirefox Full support YesIE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support YesOpera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yes

Legend

Full support  
Full support

See also

Tag del documento e collaboratori

Hanno collaborato alla realizzazione di questa pagina: fscholz, Jeremie
Ultima modifica di: fscholz,